* {
    margin: 0px;
    padding: 0px;
}

div {
    /* border: 1px solid red; */
}

.bigbox {
    width: 100%;
    height: 1615px;
}

.dingbu {
    width: 100%;
    height: 120px;
    background-color: yellow;
    margin-top: -10px;
}

.logo1 {
    width: 90px;
    height: 90px;
    margin-top: 10px;
    margin-left: 50px;
}

.logo2 {
    width: 280px;
    height: 80px;
    margin-top: -85px;
    margin-left: 80%;
    border: 2px solid black;
    border-radius: 50px;
    text-align: center;
}

.logo2 a {
    text-decoration: none;
    color: #000;
    top: 40px;
    /* margin-top: 0px; */
}

.tupian {
    width: 100%;
    height: 600px;
    background-color: yellow;
    margin-top: -100px;
}

.hudu {
    width: 100%;
    height: 300px;
    background-color: yellow;
    border-radius: 0 0 80% 80%;
}

.wengzi1 {
    width: 40%;
    height: 100px;
    margin-top: 100px;
    margin-left: 30%;
    text-align: center;
}

.wengzi2 {
    width: 40%;
    height: 100px;
    margin-left: 30%;
    text-align: center;
}

.xiaogou {
    width: 50%;
    height: 450px;
    margin-left: 25%;
    margin-top: 10px;
}

.bai,
.huang {
    width: 40%;
    height: 200px;
    margin-top: 10px;
}

.bai {
    margin-left: 10%;
}

.huang {
    margin-left: 40%;
}

.bigneirong1 {
    width: 90%;
    height: 500px;
    display: flex;
    margin-left: 100px;
    margin-top: 50px;
}

.bigneirong1 a {
    opacity: 0.5;
}

.neirong1,
.neirong2,
.neirong3,
.neirong4 {
    width: 20%;
    height: 319px;
    margin-left: 5%;
    margin-top: 50px;
}

.xiaoxun {
    margin-left: 80px;
}

.piaoti {
    width: 70%;
    height: 50px;
    margin-top: 10px;
    margin-left: 20%;
    display: flex;
}

.xiaowengzi {
    width: 100%;
    height: 90px;
    margin-top: 10px;
}

.xiaotupian {
    width: 90%;
    height: 130px;
    margin-top: 10px;
    margin-left: 5%;
}

.bigneirong2 {
    width: 100%;
    height: 500px;
    /* display: flex; */
    margin-left: 100px;
}

.bigneirong2 p {
    opacity: 0.5;
}

.pingpai {
    width: 90%;
    height: 80%;
    display: flex;
    margin-left: 100px;
    margin-top: 50px;
}

.pingpaiming {
    width: 180px;
    height: 110px;
}

.dibu {
    width: 100%;
    height: 100px;
}

.banquan {
    width: 60%;
    height: 60%;
    margin-top: 20px;
    margin-left: 20%;
}

img {
    width: 100%;
}

.piaoti p {
    font-size: 25px;
    text-align: center;
}

.xiaowengzi p {
    text-align: center;
}

.huawei,
.xiaomi,
.xiaoxun,
.dushulang,
.oppo {
    width: 20%;
    height: 50%;
}

.xiazai {
    margin-left: -100px;
}